Amoretu Casual Long-Sleeve Maxi Dress ($42) There's so much to love about this bestselling Amazon maxi dress — from its sexy, off-the-shoulder fit to the gown's decadent brown coloring.

LONDON—The Zara store in London’s Chelsea neighborhood received a new range of maxi dresses in various styles. After just one week, store manager Ana Oliveira analyzed the sales data and saw ...